#4450: Do stack squeezing before expanding stack -------------------------------------+--------------------------------- Reporter: simonpj | Owner: simonmar Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 6.12.3 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: -------------------------------------+--------------------------------- Comment (by Sebastian Graf <sgraf1337@…>): In [changeset:"e2d614e40e8b049ac0bcf3c6ccc6f0009864511e/nofib" e2d614e/nofib]: {{{ #!CommitTicketReference repository="nofib" revision="e2d614e40e8b049ac0bcf3c6ccc6f0009864511e" Disable timer-based context switches Summary: In the past, we repeatedly had problems with non-deterministic allocations due to stack squeezing during context switches (#4450, #8611). This patch adds `+RTS -V0 -RTS` as extra `RUNTEST_OPTS` for every single- threaded benchmark. Is this the right place to add the flags? Should we also do this for all the other benchmarks? Reviewers: simonmar, osa1, nomeata, O26 nofib GHC Trac Issues: #8611 Differential Revision: https://phabricator.haskell.org/D5470 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4450#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler